15.2.3.6-4-169.js (984B)
1 // Copyright (c) 2012 Ecma International. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 4 /*--- 5 es5id: 15.2.3.6-4-169 6 description: > 7 Object.defineProperty - 'O' is an Array, 'name' is the length 8 property of 'O', the [[Value]] field of 'desc' is less than value 9 of the length property and also lesser than an index of the array 10 which is set to configurable: false, test that new length is set 11 to a value greater than the non-deletable index by 1, and 12 TypeError is thrown (15.4.5.1 step 3.l.i) 13 ---*/ 14 15 var arrObj = [0, 1, 2]; 16 17 Object.defineProperty(arrObj, "1", { 18 configurable: false 19 }); 20 21 Object.defineProperty(arrObj, "2", { 22 configurable: true 23 }); 24 assert.throws(TypeError, function() { 25 Object.defineProperty(arrObj, "length", { 26 value: 1 27 }); 28 }); 29 assert.sameValue(arrObj.length, 2, 'arrObj.length'); 30 assert.sameValue(arrObj.hasOwnProperty("2"), false, 'arrObj.hasOwnProperty("2")'); 31 32 reportCompare(0, 0);